Help with this diamond--Making a purchase soon

[helpmeplease]

This sites been great is is full of great advice. Hopefeully you can help me with this. I''m thinking of purchasing this diamond. Its through a diamond-wholesaler/retailer who has been used by a number of people I know and is extremely reputable and knowledgeable. I haven''t seen the diamond since I am in another city but I wholeheartly trust this person based on my interactions and those of others.

1.53
GIA
RB
F
SI1 (there are small feathers/clouds off to the side, could "potentially be a VS2"
61.8
57
VG
G
thin to medium
no culet
no flour
$11,000

According to them it is a true ideal cut and is an absolutely beautiful stone. Compared to some online prices seems a couple hundred bucks more then most but wasn''t sure how good those comparison stones are.

Thoughts?

 

[bling]

it could be a great performer and it could be a true ideal stone. most here will ask you to collect a bit more information on the stone before they tell you, yes or no on the stone. please ask the broker for crown and pavillion angles..maybe a sarin or an idealscope image. that would be a great place to start. good luck!